Fluorescent brightener

In the use of masterbatch, as long as the masterbatch and resin proportionally mixed, can be directly used for plastic products molding processing.  A small amount of mixing only by hand, in the case of processing a large amount, in order to ensure the dispersion of the masterbatch, you can use mechanical mixing.  After the masterbatch is mechanically mixed with the resin plastic, it can be sent to the injection molding machine with the premolding device.  

Generally speaking, the mixing ratio range of masterbatch and resin is relatively wide, ranging from 1:10 to 1:100.  This mainly depends on the content of fluorescent brightener in the masterbatch and the fluidity of the plastic.  According to the experience of plastic engineers and technicians, the mixing fluidity sequence of common plastics is as follows:  

GPS→PE(high melt index)→PE(low melt index), PP(low melt index), PVC→HIPS→ABS, SAN→PC, PA, NY.  

According to the above sequence, for the same injection molding equipment, in the operation and ratio selection can do the process of reference.  Mixing good plastic, the ratio can be smaller, mixing poor masterbatch ratio can be appropriately magnified, and pay attention to the process.